CVE-2017-7472: linux linux_kernel Improper Resource Shutdown or Release
Vulnerability summary
CVE-2017-7472 is a medium (CVSS 5.5) Improper Resource Shutdown or Release vulnerability in linux linux_kernel. EPSS estimates a 2.26% chance of exploitation in the next 30 days, higher than 83% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 15 · Related 8Timeline
- 11-05-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The KEYS subsystem in the Linux kernel before 4.10.13 allows local users to cause a denial of service (memory consumption) via a series of KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring calls.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
2.26%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.26% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundLinux Kernel < 4.10.13 - 'keyctl_set_reqkey_keyring' Local Denial of Service
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu16 products
- linux< 3.13.0-132.181 | < 4.4.0-79.100
- linux-aws< 4.4.0-1018.27
- linux-azureAll versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
- linux-gcpAll versions (No fix recorded)
Debian1 product
- linux< 4.9.25-1
Linux1 product
- linux_kernel≤ 4.10.12
3 vendors · 18 products
References
24 links- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.13X Refsource CONFIRMRelease NotesVendor Advisory
- github.com/torvalds/linux/commit/c9f838d104fed6f2f61d68164712e3204bf5271bX Refsource CONFIRMIssue TrackingPatchThird Party Advisory
Show all 24 references
- openwall.com/lists/oss-security/2017/05/11/1X Refsource CONFIRMMailing ListPatchThird Party Advisory
